JPH0454551Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a security watch that detects an intruder and issues a warning.

[Conventional technology]

Some conventional security systems detect intruders by attaching infrared beam generators and infrared sensors to entrances, windows, and the like.

[Problem that the invention attempts to solve]

In the above-mentioned conventional devices, the detection location is fixed and the entire device is large-scale, so it has not been widely used in general households. Currently, the security system in ordinary homes is limited to locking the front door and windows.

The present invention is movable to any location, and is designed to detect intruders coming from any location, such as a window or entrance, and issue a warning while the user is sleeping, especially in a bedroom.

[Means for solving problems]

The present invention supplies power to an infrared sensor when the light/darkness detection means detects a dark state, and issues a warning when an intruder is detected by the infrared sensor.

〔Example〕

In FIG. 1, reference numeral 1 denotes a clock, and a rotatable intrusion detection section 2 is provided above the clock. The intrusion detection section 2 consists of a concave condensing mirror 3 and an infrared sensor 4 as shown in FIGS. 2 and 3, which can rotate integrally within a range of 270 degrees. In this example, since the condensing range of the condensing mirror 3 is set to 80 degrees, intrusion detection in any direction is possible.

In Fig. 4, 5 is an amplifier for amplifying the output of the infrared sensor 4, 6 is a comparator, 7 is a timer circuit, and 8 is an alarm sound generator. 9 is a CDS constituting a light/dark detection means, which operates the infrared sensor 4 only when it becomes dark around.
Reference numeral 10 denotes an inverter, 11 and 12 denote resistors, and 13 denotes a transistor.

In the above configuration, for example, the present timepiece device is placed at the bedside, and the intrusion detection section 2 is rotated to face the window. When the light is turned off, the output of the inverter 10 becomes "0" due to the output of the CDS 9 shown in FIG. become. Then someone opens the window and breaks in.
The amount of infrared light collected by the infrared sensor 4 by the focusing mirror 3 changes. If the output of the amplifier 5 at this time is higher than the reference voltage of the comparator 6, an output is generated from the comparator 6 and an output is generated from the timer circuit 7 for a certain period of time. As a result, the alarm sound generating device 8 is operated and the alarm sound starts to sound, giving a warning to the intruder and waking up the sleepy person to alert them to the danger.

The alarm sound generating device 8 may also be used as a wake-up device that operates at a set time, or another device that generates a different sound may be used. Alternatively, the warning may be issued by voice.

In Fig. 5, a warning is issued with light instead of an alarm sound, and the intrusion detection unit 14 includes a lamp 15, a window 1
6 and an infrared sensor (not shown). This intrusion detection section 14 is also rotatable and can be directed in any direction.

The lamp 15 has a circuit configuration similar to that shown in FIG. 4, and emits light when an intrusion is detected to give a warning to the intruder. In this case, an alarm sound may be generated at the same time to further strengthen the warning and wake up a sleepy person.

〔effect〕

According to the present invention, the watch is equipped with a condensing mirror whose direction can be changed, an infrared sensor, a light/dark detection means, and a warning device, so it can be carried and installed in any location, and the watch can be kept facing the sleeper. Intrusion from any location can be detected. Moreover, since the infrared sensor only operates when it is dark, it is possible to achieve low current consumption. In particular, it is possible to detect an intrusion through a bedroom door or window while the user is sleeping, and to give a warning to the intruder.

In addition, when a lamp is used as a warning device, the lamp can be activated by waving your hand or other actions within the focusing range of the focusing mirror, which is convenient when you want to know the time in the middle of the night. .

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of the present invention, Fig. 2 is a front view of the main part of Fig. 1, Fig. 3 is a plan view of Fig. 2, and Fig. 4 is an example of the circuit configuration. FIG. 5 is a front view showing another embodiment. 2... Intrusion detection section, 3... Concentrating mirror, 4...
Infrared sensor, 8... Alarm sound generator, 9...
...Brightness detection means, 13...Control means, 14...Intrusion detection section, 15...Lamp.

Claims (1)

[Scope of utility model registration request] A condensing mirror whose direction is variable, an infrared sensor that receives light from the condensing mirror, a light/dark detection means for detecting a dark state, and a power supply to the infrared sensor when the light/dark detecting means detects a dark state. A security watch comprising a control means for supplying the information, and a warning device that issues a warning when an intruder is detected by the infrared sensor.